grub2/0152-EFI-more-debug-output-on-GOP-and-UGA-probing.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Mon, 10 Sep 2018 13:01:24 -0400
Subject: [PATCH] EFI: more debug output on GOP and UGA probing.

Signed-off-by: Peter Jones <pjones@redhat.com>
---
 grub-core/video/efi_gop.c | 8 +++++++-
 grub-core/video/efi_uga.c | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/grub-core/video/efi_gop.c b/grub-core/video/efi_gop.c
index c9e40e8d4e9..be446f8d291 100644
--- a/grub-core/video/efi_gop.c
+++ b/grub-core/video/efi_gop.c
@@ -71,7 +71,10 @@ check_protocol (void)
   handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL,
 				    &graphics_output_guid, NULL, &num_handles);
   if (!handles || num_handles == 0)
-    return 0;
+    {
+      grub_dprintf ("video", "GOP: no handles\n");
+      return 0;
+    }
 
   for (i = 0; i < num_handles; i++)
     {
@@ -81,6 +84,7 @@ check_protocol (void)
       grub_video_gop_iterate (check_protocol_hook, &have_usable_mode);
       if (have_usable_mode)
 	{
+	  grub_dprintf ("video", "GOP: found usable mode\n");
 	  grub_free (handles);
 	  return 1;
 	}
@@ -89,6 +93,8 @@ check_protocol (void)
   gop = 0;
   gop_handle = 0;
 
+  grub_dprintf ("video", "GOP: no usable mode\n");
+
   return 0;
 }
 
diff --git a/grub-core/video/efi_uga.c b/grub-core/video/efi_uga.c
index 97a607c01a5..e74d6c23500 100644
--- a/grub-core/video/efi_uga.c
+++ b/grub-core/video/efi_uga.c
@@ -110,7 +110,7 @@ find_card (grub_pci_device_t dev, grub_pci_id_t pciid, void *data)
     {
       int i;
 
-      grub_dprintf ("fb", "Display controller: %d:%d.%d\nDevice id: %x\n",
+      grub_dprintf ("video", "Display controller: %d:%d.%d\nDevice id: %x\n",
 		    grub_pci_get_bus (dev), grub_pci_get_device (dev),
 		    grub_pci_get_function (dev), pciid);
       addr += 8;
@@ -140,7 +140,7 @@ find_card (grub_pci_device_t dev, grub_pci_id_t pciid, void *data)
 	  base64 <<= 32;
 	  base64 |= (old_bar1 & GRUB_PCI_ADDR_MEM_MASK);
 
-	  grub_dprintf ("fb", "%s(%d): 0x%" PRIxGRUB_UINT64_T "\n",
+	  grub_dprintf ("video", "%s(%d): 0x%" PRIxGRUB_UINT64_T "\n",
 			((old_bar1 & GRUB_PCI_ADDR_MEM_PREFETCH) ?
 			"VMEM" : "MMIO"), type == GRUB_PCI_ADDR_MEM_TYPE_64 ? i - 1 : i,
 			base64);